Dustproof shaft casing



Nov. 11,1925. 1,561,589

A. M. BATES Filed May 26. 1922 ZSheets-Sheet 1 www 'w Nov. 17, 1925.

' A. M. BATES DUsTPRooF' SHAFT cAsING 'Filed May 26, 1922 treating dusty materials,

u and means to diagrannnatically in the w ply system wheneby Pawnee Nev. 17, 192s. f,

.KURIER M. BATES, OF CHICAGQ, LLINOIB,

Pm. 01?' CHICAGO, ILLINOIS,

A CGRPORATIN @DF tentata eine,

nativa rea/e cox'- 'Wnae Waerme.

salomon no Jeanne Application 111e@ my 2e, 192e. anni at. imacat.

To zit Awl'zyom it may @ofecen/z:

" Be it known that I, ADELMER M. BATES, a

citizen o! the United States, residing at Chicago, in the county of Cook and State Iliinois, have invented a certain new and usefu im rovement in Dustpioof Shaft Casings, ofwiiich the-'following is a specification.

This invention relates to apparatus for and more particw lari to cement ankers.,

he object o the invention a casing :for such apparatus, anoperating shaft with its bearings outside of the casing,

" prevent the escape of duet from the easing. More particularly, the objects are to prevent the escape of dust adjacent the bearings and. to permit the use of ay common o erating shaft fono, plurality of casings, wit out requiring carefull mau chined and fitted joints to prevent t e escape of duet or exact alignment of the several casings with each other.

My invention is illustrated more or 'lese accompanying is to provide drawings, wherein:

F igre lis a longitudinal section of the shaft, casing and bearing;

igure 2 is a cross section taken on line 2-2 of Figure 1;

Figure is a cross section on line 33 of Figure 1;

Figure 4 is a view the bearing;

Figure 5 is a cross section 5-5 of Figure 4:.

Like arts are `designated by like characters t ronghout.'

A is a casing which forms part'of a supmaterial, such for ex ample as cement, is fed into packages Run ningthroughthie casing is a shaft A" upon liilis mounted an impeller Az provided with biades A', A.. The cement or other of a modified form of taken on line 5 material is fed into the easing A and by means of the impeller iedriven forward and outward thi-ou h a discharge spout, not here shown, ein? into a receptacle. It is desrable to prevent the escape of the dusty mateiiia from the casing, except throu h the dinciiarge spout, and-"especially desire le to prevent the escape of dust adjacent the Thea.

" 'The casing has at one end a laterizi eX I tension B.

position of the casinge Vcurled haii' (if ci' other This extention lies clone to the extension C of a eiiniiai casing. to prevent the escape oit the nement it is important that the two ceeings he joined to getheiy in a duet proof ioint and it is iinportan-t that enen a joint tie to ineke and inexpensive. For this purpose tiiei'e is Wrapped abonttiie tivo adjoining ende of the members B and. a piuiaiity of Stowe of Henibie tape i). This tape .may he of any enitabie type. 1t may tie ,ginnniied oi' not, 1t may be painted on its onteide.. By means of this tape a Ieaeonaioiy .tienibie and ein ti'emely tight joiiiit vided and thereby the escape of materiai :teem the easing reduced to a minimum With this tieniiaie joint, exact alignment of the caeinge is nnneeessaiy when setting 'np'.tiie appointing', and Subeeqnent slight, changes in tine reiative ina-y take piace Witte out undue strain on the connections.,

At tile outer end of the shaft is a bearing About the" shaft and against end of the bearing is tig-titty mounted a split coliar E which ase-iste in excluding iioni the bearing any iiniveiaed material 'which may have escaped fior eystem and be floating in the air.

In order to mininiine tine escape :from the casing there is huilt about the end of the shaft adjacent the bearing a housing F, and upon the shaft on either eide of the housing is mounted aiater'aliy extending' ianffe F', F. These angee been againet the 'inside of the housing and forni tigi'it joints. `With in the housing ie packed a qnantity, of loose eimiiai" material. There ie inevitably some circulation of `air from the interior of the casing A past the first iiange F and into vthe housing F. The construction ie deeiwoed to minimize tiiie circulation of air, tout some of it inevitably takes piace. The materiai serves as a collector and in gi-eat wt conecte the duet in the escapinff maand prevents its further movement e second ange F :further serves to prevent tile dieciiarge ofnany aii and in particule? to' pi. ,vent the diecnaige of puliv'eifized met "i, Wi i tiiie torni mi dust packing, itie eviden-@t emot alignment of the easing ,witilathe' shaft nie not necessary iii-order to preventmaterial escape of dust In cider 'which the @mit H is cmred in summing@ H H2. The bearing H2 is provde ai one 1531 with a laterally extending? iange H8 which has im it ,a '0in H?. The oueing H of ich@ bearing H2 as adjacent its @maar @mi za. caw- 'cy H, Within this che pin H4 i adapted in and thus the bearing is hdd faggamn mimica, It is zied against www?. mow mem by means of the set Screws H7. f

Between thgtwo bem-ing@ they@ i@ pn)- vded a pcka I which has the remjmbe cmfiels T which may be secme 'm pme in any sutabe manner. Within this packet their@ is packed a quantity Q curled haii' @father similar materia I2.' The funcon of' this curled haii' is' the sam@ as tbm scribed above in connection wh h@ @they fom of the invention and im purpse is m reven; 'sement m' other puverized. mafria. Hem coming ino the bearing.

Ahugh l have shown :m operativ@ vice, it wl be obvious fha@ many c'mngv migh be made in size, shape :m raon 07E pars without departing mateay from the wird@ of my invention, and Wish 'therefore that myy showixg be takeu a's'n a sens@ ag'ammmc.

Claim:

L A puralty ofcasxs encosng appa.- aus foi operating on usty 'nuaeex'as9 @mman @panting shaft extending 'loosely hough mughly aligned openings in said aasl'xga? subitantsly dust-W430i ons baand dus sl mi s f wem@ the adjoingig cagmgs, and dust rs# aiming packing sum'eundnggg t'xe @haft ai dm common opemmg shaft extending IQOSely' through rcmghly agned opiamng m sind )BATESQ 

